Enable SAIS team to extend clinic appointments during and after booking

[malross]

MAV-10701 Can extend appointments to cover multiple slots

Context

While the settings on the session relating to double-slot appointments will cover a lot of the need for variable length appointments, there will be times when the SAIS team wants to extend – or possibly even shorten – an appointment, typically when they know the child has extra support needs that can affect the time it takes to vaccinate. So while the session's rules for double-slot appointments will still be honoured, this PR adds the ability to extend an appointment during the team's booking process, or change the length of an appointment arbitrarily thereafter.

The changes

There are two main parts to this, giving the SAIS team control over an appointment's length:

• during booking, the team can opt to extend an appointment by an extra slot based on the child's support needs
• after booking, the team can change the length of the appointment, either reverting it to its default length or setting a precise number of slots that it should occupy

In both cases, the inability to fit the desired length into the session will result in the team being offered a shortened appointment and flagging the potential for overrun (which research suggests SAIS teams are very good at accommodating).

Screenshots

During booking, the team is offered the chance to extend the appointment for support needs:

Appointment length shown explicitly on the check answers page, support needs in the Child details:

The Edit Appointment page, with the new Appointment length property and Change link:

The appointment length page in the appointment editing journey:

The same page, showing the option to enter a specific length:

An optional page following the appointment length page, offering to shorten the appointment to fit the session:

[paulrobertlloyd]

• On check and confirm page, the time summary row appears before that for appointment length, but when editing appointment length appears before time; these should be the same
• For appointment length, should we also (and always) indicate how many slots that is (i.e. ‘30 minutes (3 slots)’)
• We should also be consistent in how we order time and slots. Is it:
  • 30 minutes (3 slots)
  • 3 slots (30 minutes)

[malross]

@paulrobertlloyd

• On check and confirm page, the time summary row appears before that for appointment length, but when editing appointment length appears before time; these should be the same

Yeah, that's something I was aware of, but wasn't sure it was right to make consistent.

How religiously do you make the order of the properties on a check-answers page match the order of the pages in the journey? I feel like it's quite important and that's why the appointment length comes before the appointment time in the editing journey's check answers page. In the booking journey, there's no explicit choose-an-appointment-length page, so I felt more free to choose where that value went in the check answers page – and it felt weird putting it in the middle of the location > date > time range > time sequence of pages.

[malross]

@paulrobertlloyd

• For appointment length, should we also (and always) indicate how many slots that is (i.e. ‘30 minutes (3 slots)’)
• We should also be consistent in how we order time and slots. Is it:
  • 30 minutes (3 slots)
  • 3 slots (30 minutes)

Regarding showing the appointment length, do you reckon it's still valuable to show the start and end times? For example, in check-answers for the booking journey, you'd get something like the following:

Appointment length: 20 minutes (2 slots)
Time: 2:45pm to 3:05pm

I feel like I'm duplicating information. 😐 Some options, for the booking journeys, might be:

• stop showing the Appointment length property completely (it has no Change link anyway)
• stop showing the end time in the Time property e.g. Time: 2:45pm

Thoughts?

(Oh, and I'll never include the bit about slots in parent-facing pages.)